The number one rule of getting free weed is that you keep the free weed, a lesson that Carla McFarland of Frederick, Md. was not privy to on Wednesday. When she ordered food from local fast food chain Sonic, and it arrived with a baggie filled with weed, McFarland complained to a manager and called the police.

Via the Frederick News-Post:

"I just kind of sat there in my car in shock," McFarland said Thursday. "I kept thinking, what if my kids had eaten it?"

A manager at the Sonic told McFarland that an employee said that the weed must have fallen out of her apron when she was serving the customer. The employee has since been fired from the restaurant.

McFarland was still not pleased. As she told the Frederick News-Post, "I think that's why everyone thinks it's so funny, because it's marijuana and it's going to be legalized," she said. "It could have been crack. It could have been cocaine in that little baggie."

[Images via AP/Frederick News-Post]